#!/bin/bash
# Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
# See License.txt for license information.

mkdir -p web/static/js

echo "127.0.0.1 dockerhost" >> /etc/hosts
/etc/init.d/networking restart

echo configuring mysql

# SQL!!!
set -e

get_option () {
	local section=$1
	local option=$2
	local default=$3
	ret=$(my_print_defaults $section | grep '^--'${option}'=' | cut -d= -f2-)
	[ -z $ret ] && ret=$default
	echo $ret
}


# Get config
DATADIR="$("mysqld" --verbose --help 2>/dev/null | awk '$1 == "datadir" { print $2; exit }')"
SOCKET=$(get_option  mysqld socket "$DATADIR/mysql.sock")
PIDFILE=$(get_option mysqld pid-file "/var/run/mysqld/mysqld.pid")

if [ ! -d "$DATADIR/mysql" ]; then
	if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" ]; then
		echo >&2 'error: database is uninitialized and MYSQL_ROOT_PASSWORD not set'
		echo >&2 '  Did you forget to add -e MYSQL_ROOT_PASSWORD=... ?'
		exit 1
	fi

	mkdir -p "$DATADIR"
	chown -R mysql:mysql "$DATADIR"

	echo 'Running mysql_install_db'
	mysql_install_db --user=mysql --datadir="$DATADIR" --rpm --keep-my-cnf
	echo 'Finished mysql_install_db'

	mysqld --user=mysql --datadir="$DATADIR" --skip-networking &
	for i in $(seq 30 -1 0); do
		[ -S "$SOCKET" ] && break
		echo 'MySQL init process in progress...'
		sleep 1
	done
	if [ $i = 0 ]; then
		echo >&2 'MySQL init process failed.'
		exit 1
	fi

	# These statements _must_ be on individual lines, and _must_ end with
	# semicolons (no line breaks or comments are permitted).
	# TODO proper SQL escaping on ALL the things D:

	tempSqlFile=$(mktemp /tmp/mysql-first-time.XXXXXX.sql)
	cat > "$tempSqlFile" <<-EOSQL
	-- What's done in this file shouldn't be replicated
	--  or products like mysql-fabric won't work
	SET @@SESSION.SQL_LOG_BIN=0;

	DELETE FROM mysql.user ;
	CREATE USER 'root'@'%' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ;
	GRANT ALL ON *.* TO 'root'@'%' WITH GRANT OPTION ;
	DROP DATABASE IF EXISTS test ;
	EOSQL

	if [ "$MYSQL_DATABASE" ]; then
		echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" >> "$tempSqlFile"
	fi

	if [ "$MYSQL_USER" -a "$MYSQL_PASSWORD" ]; then
		echo "CREATE USER '"$MYSQL_USER"'@'%' IDENTIFIED BY '"$MYSQL_PASSWORD"' ;" >> "$tempSqlFile"

		if [ "$MYSQL_DATABASE" ]; then
			echo "GRANT ALL ON \`"$MYSQL_DATABASE"\`.* TO '"$MYSQL_USER"'@'%' ;" >> "$tempSqlFile"
		fi
	fi

	echo 'FLUSH PRIVILEGES ;' >> "$tempSqlFile"

	mysql -uroot < "$tempSqlFile"

	rm -f "$tempSqlFile"
	kill $(cat $PIDFILE)
	for i in $(seq 30 -1 0); do
		[ -f "$PIDFILE" ] || break
		echo 'MySQL init process in progress...'
		sleep 1
	done
	if [ $i = 0 ]; then
		echo >&2 'MySQL hangs during init process.'
		exit 1
	fi
	echo 'MySQL init process done. Ready for start up.'
fi

chown -R mysql:mysql "$DATADIR"

mysqld &

sleep 5

# ------------------------

echo starting platform
cd /mattermost/bin
./platform -config=/config_docker.json
